Motorola BLE*/* - Manual (Page 42)

Installation 5-3
BLE*/* Installation and Operation Manual
Pedestal Installation
Pedestal installation is similar to aerial installation with the exception of temperature and
mounting procedure. In an aerial installation, the cable and amplifier are subject to the same
temperature. In contrast, pedestal installation provides a stable temperature environment for
the buried cable while subjecting the elevated amplifier to higher temperatures. The ADU, if
installed, functions the same as in an aerial installation, and does not require further attention.
See Section 3, “Amplifier Setup,” Amplifier Level Control for additional information.
Manual thermal compensation provided by the TDU can be inaccurate and result in signal level
changes with ambient temperature change. One approach to this problem is to select the least
amount of cable setting (low) on the TDU. This results in minimal gain change with
temperature. A preferred approach is to install a JXP-TH*C thermal attenuator while operating
the BLE*/* in the manual mode.
To mount the BLE*/* on a pedestal:
1 Remove the two 5/16-inch messenger clamps and bolts located on the long side of the
housing.
2 Locate the two 5/16-inch holes 4.0 inches center-to-center cast into the housing base.
3 Use the two 5/16-inch bolts to install the BLE*/* to the pre-drilled pedestal mounting plate
and torque to 10 to 12 ft-lbs.